open-ils.storage: A deprecated method of providing access to Evergreen
fieldmapper objects. Implemented in Perl, this service has largely been
replaced by the much faster C-based open-ils.cstore service.

open-ils.supercat: Supports transforms of MARC records into other formats,
such as MODS, as well as providing Atom and RSS feeds and SRU access.

open-ils.trigger: Supports event-based triggers for actions such as
overdue and holds available notification emails.

open-ils.url_verify: Support tasks for validating URLs

open-ils.vandelay: Supports the import and export of batches of
bibliographic and authority records.

Of some interest is that the open-ils.reporter-store and open-ils.cstore
services have identical implementations. Surfacing them as separate services
enables a deployer of Evergreen to ensure that the reporting service does not
interfere with the performance-critical open-ils.cstore service. One can also
direct the reporting service to a read-only database replica to, again, avoid
interference with open-ils.cstore which must write to the master database.

There are only a few significant services that are not built on OpenSRF, such
as the SIP and Z39.50 servers. These services implement
different protocols and build on existing daemon architectures (Simple2ZOOM
for Z39.50), but still rely on the other OpenSRF services to provide access
to the Evergreen data. The non-OpenSRF services are reasonably self-contained
and can be deployed on different servers to deliver the same sort of deployment
flexibility as OpenSRF services, but have the disadvantage of not being
integrated into the same configuration and control infrastructure as the
OpenSRF services.